Window-cleaner



M. GOLDSTONE.

WINDOW CLEANER.

APPLICATION FILED FEB- 7. I920;

Patented Sept. 21,1920.

. I .II ,I.

Nome/s :GOLDSTONE A TTORNEYS moms GOLDSTONE, or 3300 m, new onx.

- WINDOW-CLEANER.

Application 'fi1ed I Februa ry z, 1920. Serial No; 356,923.

To all whom it may concern."

Be it known that .I, MORRIS GoLos'rorIE, a citizen of Russia, and a resident of the city of New York, borough of Brookl n, in the county of'Kings and 'State' of ew York, have inventedanew and Improved W ndow-Cleaner, of whichthe following is a full, clear, and exact description.

This invention relates to cleaning inachines, and more particularly to a window cleaner. I a I The primary object of the invention is to provide a mechanically-driven windowcleaning machine which cleans windowsor other surfaces at a rapid rate, and whlch may be used to clean windows or other surfaces without employing ladders for gain ingaccess to windows located high off of the Y floor, or for cleaning large show and store windows where considerable surface is ex'- posed and where considerable manual labor is necessarily employed' I claims.

It is a purpose to provide an electricallydriven window-cleaning machine, positive and dependable in operation, light 1n= weight, and having such simplified construction and o eration as will render the cleaner capable o being'operated bymost any. per son who is able to manipulate the machlne.

ing machine incorporating a cleaning surface which may be renewed from time to a time, and which also employes an adjustable handle for manipulating the. window cleaner and moving it over the'surface to be cleaned. With the above principal objects, and

others, in view the. invention has relation to the cleaning machme, one form of WlllCll 1s described in the following specification and illustrated in the accompanying drawings;

while several modifications in design and structure are covered in the appended Figure 1 in the drawings shows a win dow-cleaning machine in side elevation with the cleaning wheel in section toportray the operative partsthereof; a

Fig. 2 illustrates a rear elevation of window-cleaning machine; and I Fig. 3 illustrates a fragmentary sectional view taken through the handle portion of the the cleaning machine to illustrate the end of of the wheel and passed under the clamping face 16 between the cleaning wheel 10 and the handle as attached to the machine.

A cleaning machine constructed in ac- It isa further purpose to provide a clean-- Specification of Letters Patent. .Pa,t gnt d s ptpgl 1920 cordance with the purpose of my..-invention employs a cleaningwheel having a clamp associated therewith for holding a cleaning. .c oth 1p such. away-that the cloth may" be periodically changed during cleaning operations. e cleaning wheel is driven by an electric motor, and an adjustable handleis attached to the frame of themotor for -moving the cleaning wheel backand forth over thesurface to be washed;

- A more detailed disclosureof my invention shows a motor; casing 4. having a post 5 integral therewith and projecting from one-end. An electric motor 6 is -shown in dotted lines, in thedrawings, contained in the casing 4 and having a drive shaft 7 A cleaning Wheel 10is constructed prefer ablyof laminatedmaterial, as, for example, laminated wood, This construction'provides a-cleamng wheel of great strength and light weight. A flange 11 is fixed tothe cleanmg'wheel and is mounted on the drive shaft -7 to turn with. and be driven by the shaft.

A rubber "covering 12 is applied to the workmg face of the cleaning wheel and excludes Water from the veneered construction of 'thewheel, and provides a frictional gripping surface to hold a cleaning cloth, as.

later seen. It is obvious that any suitable form or structure of wheel 10 maybe employed.

A flang'e 14 is fixed on the drive shaft? and 1s exteriorly; threaded to receive an interiOrIyTthreaded cloth clamping ring 15.

The clamp 15 is, in fact, similar to' a flange, and has a clamping face 16 which engages the, face of the cleaning wheel. By grasping the cleaning wheel 10 and holding it in fixed position, the clamp ring '15- may be rotated to move the clamping face 16 away from the face of the cleaning wheel 10...

This action is effected through the threaded connection existing between the flange 14 and cloth clamp ring 15; and as the member 15 is rotated in the properdirection it is caused to travel away from the cleaning A cleaning cloth 13 is applied-to the outer working face of the cleaning wheel 10 in the manner shown in Fig. 1, where the cloth is stretched over the face of the wheel, and

the edges thereof brought around the rim the cloth clamp ring 15. The-member is then rotated to move it back in engage ment with the cloth 13 and, thus, elamp the cloth to the cleaning Wheelin firmand substantial relation;

' A handle socket is provided having ears .19 made on one'end. A lug 17 is integlally. formed on'the handlesoc'ket-18 and acts as a stop to limit the motion of the handle-when mounted, as shown in Fig. 1. A pin is passed through the cars 19 and I through a bearinghole made in the'post 5,

' 20' I serting-the. ends into a recess formed in the to pivotall'y carry thehandleSOcket 18 upon the motor casing 4:. The handle socket 18- is,

therefore, free to pivot u on the post 5.

- A handle 22 is inse in the socket 18 and rotatebly' confined therein.' A spring 23 is interposedbetween the. base of the socket and thelend of. the handle 22 by turning dow n"each end of the spring 23 and inend of the handle and in the base of the 'socket. In this manner the spring 23 acts to restrain the rotation of the handle 22 in 25.

the socket 18; The handle is permitted to undergo swiveling motion, but the spring acts as a positive elastic restraint to return the handle socket to. itsxnormal centralized position. The handle 22 is provided with slotted openings, and pins 24: are fixed in the handle socket and inserted in the slotted openings of the handle-to confine the handle ing the motor.

. Bolt keepersi28 and 29 are fixed to the .post '5, the first-keeper being fixed to the side thereof and the other-keeper fixed to the end of-the post. Each keeper has a slotted cut therein to provide a receptacle or guide between the keeper and the surface of the post. A guide plate 30 .is fixed on the handle socket and slidably retains a bolt 31. The lower end of the bolt 31 may be turned up,

as shown in the drawings, to provide a hand catch for pushing the bolt in and out of engagement with the keepers. The upper end of the bolt 31 is provided with a tongue 32 which'may be struck from the bolt 31' to formv'an integral structure therewith. This formationof the upper end of the bolt provides. the inner locked portion 33 which slides'into'position between the keeper and the post, and the outer locked tongue 32, which engages the outer portion of the 'keeper. Tn this manner the bolt 31 is made to engage with the keeper 29 to hold the cleaning machine in one fixed position,'while integer the machine may be adjusted to a new po sition by sliding the bolt 31 out of engagement with the keeper 29 and rotating the machine about the pin 20 until the bolt 31 will engagetlie keeper 28. In this'wiay it is seen how the working face of the cleaning wheel 10 may be held in either a parallel or perpendicular relation to the handle 22. These two positions of the machine are shown in Fig. 3, where the post 5 of the machine is disposed perpendicular tothe handle 22, in dotted lines, and in each posi tion the locking means provided is positive and dependable, such that the entire structure comprises a. rigid unitary assembly. The bolt is made of flexible spring steel and yields slightly to the movement of the an'dle and pressure by the operator.

In the operation of the machine a suitable cleaning cloth 13 is applied to the working face of the cleaning wheel 10 and clamped in position by the cloth clamp ring 15, as hereinbefore described. If the-window, or surface to be cleaned, is high above the floor, then the handle 22 should be adjusted in fixed'relation parallel to the working face of the wheel 10, as shown in Fig. 1, in order that the operator may move the cleaning wheel 10 back and forth and up and down over the surface. But, however, if the window is, perhaps, on a'level with the operator the adjustment of the machine may be made such that the handle is set perpendicularly to the working face of the wheel, so that the surface may be cleaned directly in front of the operator. The switch 26 is located at any convenient and accessible position on the handle, so that the machine may he stopped and started at will. I In moving the cleaning wheel back and forth across surfaces to be cleaned, the operator will tightly grasp the handle 22,.which causes a slight swiveling motion of the machine about the handle. This action is efiected through the :pin 24 and slot arrangement, as shown in detail in Fig. 3, and the spring 23 acts to assist the return of the machine to its original position In this manner the operation of the machine is flexible and universal in motion to permit the cleaning wheel to accommodate itself to the relative positions of the window to be cleaned and the operator handling the machine.

A cleaningv cloth 13 of any suitable thickness may be employed, but it is preferable to use a cloth of considerable thickness, and absorbent, in order that a considerable quantity of water maybe held by the cloth for wetting the surface to be cleaned. As the cleaning wheel 10 undergoes comparatively high velocity of rotation, the cleaning agents contained in the cloth 13. will adequately and positively clean and shine windows and other surfaces. The cleaning cloth 13 may be removed and a dry cloth applied to the machine for finishing the Work where it is desired to leave a high luster and polish on surfaces cleaned by this machine.

The invention is presented to fulfil theneeds felt for a mechanically-driven window-cleaning machine, and its use will mate rially lessen the labor involved in this work;

Having thus described my invention, what I desire to secure by Letters Patent is:

1. The combination with a cleaning machine, of a socket. member pivoted thereon, means on the socket member and means on the machine adapted to co-act therewith for locking the socket member in axial alinement or at right angles to the axis of the machine, a handle having one extremity arranged in the socket member for rotation, and means for tensioning the rotation of said handle in said socket member.

2. A- cleaning machine comprising a cleaning wheel and a motor for driving the wheel, a handle, a socket member attached to the motor and adapted to rotatably receive one extremity of the handle, locking means provided respectively on the socket member and the motor for obtaining relatively fixed adjustments between the same, and a convolute spring attached respectively to the socket member and the handle to permit a limited elastic swiveling motion between the handle and the socket member, said spring also functioning to return the handle to normal position;

3. A cleaning machine comprising a cleaning wheel having a working face, a motor for driving the cleaning wheel, a handle pivotally attached to the motor, means coacting respectively with the motor-and the handle to fix the handle and motor in relatively adjusted positions, means provided to allow limited rotation of the handle with respect to the motor and means provided for elastically restraining the aforesaid rotating movement of the handle, said meansalso serving to return the-handle to a normal position.

MORRIS GOLDSTONE. 

